Horizontally-pivoted window.



No. 762,634. PATENTED JUNE 14, 1904. I

' H. B. HITESHEW.

HORIZONTALLY PIVOTED WINDOW.

APPLICATION FILED HAR. 9., 1904.

NO MODEL.

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lUNITED STATES Patented June 14, i904.

PATENT OFFICE.

HARVEY B. HITESHEW, OF PITTSBURG, PENNSYLVANIA.

HORIZONTALLY-PIVOTED WINDOW.

SPECIFICATION formingpart of Letters Patent No. 762,634, dated June 14,1904.

Application filed March 9,1904. Serial No. 197,235. (No model.)

T0 all whom it may concern:

Be it known that I, HARVEY B. HrrmsHEw, a citizen ofthe United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement inHoriZontally-Pivoted `Win dows, of which the following is aspecification.

The invention relates to windows having the sash horizontally pivoted tostrips on each side, which strips are adapted to be separated laterallyfrom the sash and to travel longitudinally in the grooves of thewindow-frame; and the object of the improvement is to provide africtiongrip bearing for the pivot which can be tightened to retard therotation of the sash, but which will not interfere with the free lateralmovement of the strips, by means of which grip the sash can be held inany position of rotation. This object is attained by the construction,mechanism, and arrangement illustrated in the accompanying drawings, inwhichM Figure 1 is a fragmentary side view of a window frame and sash,showing the pivotal connection in longitudinal section; Fig. 2, anenlarged cross-section of the frame and sash on line 2 2, Fig. 1; Fig.8, an enlarged longitudinal section of the pivot Vparts in the stripwith the sash rotated to show a crosssection of the pivot parts therein;Fig. 4, a detached perspective view of the sash-plate;

Fig. 5, a detached perspective view of the strip-plate; Fig. 6, adetached perspective view of the thimble-pivot; Fig. 7, a detachedperspective view of the spiral spring; Fig. 8, a detached perspectiveView of the post-head; Fig. 9, a detached perspective view of thehead-screw.

Similar numerals refer to similarv parts throughout the drawings.

Thewindow-frame 1 is made in the usual manner with a groove 2 on eachside for receiving the respective sash-strips. Y The sash 3 is made lessin width than the inside clear width of the frame, and the usual strips,as 4, are pivoted on the side edges of the sash and are adapted tooperate in the respective framegrooves. The adjoining faces 5 and 6 ofthe sash edge and side strip are provided with grooves and ridges havinginclined sides, so that when the sash and strip are alined and broughttogether the respective ridges enter and lit into the correspondinggrooves, as shown particularly in Fig. 2, and when the sash is rotatedon the strips the ridges are forced out of the grooves and bear againstthe crests of the opposing ridges, thus separating the strips from thesash according to the depth of the grooves, as shown in Fig. 3. To meetthese conditions, vthe pivotal connection must provide for the lateralmovement of the strips as well as for the rotation of the sash. Eachpivotal connection is composed of the sash-plate 7, the strip-plate 8,the thimble-pivot 9, the spiral spring 10, the post-head 11, thehead-screw 12, and the gripscrew 13 and is preferably located in thetransverse axis of the sash. The sash-plate? is countersunk in the sideedge of the sash, where it is attached, as by lthe screws 14. The faceof the sash-plate is grooved and ridged like the edge of the sash, andfrom the middle of the plate projects the axial post 15, which post ispreferably angular in crosssection. The annular depression 16 ispreferably provided in this plate around the base of the post, and inthe bottom of the depression are provided the radial recesses 17, havingthe inclined sides 18.

The strip-plate 8 is countersunk inthe frame side of the strip, where itis attached, as by the screws 19, and on the strip-plate is provided thehub 20, which extends through the strip and `in which hub is formed thepivotbearing 21. The end 22 of the hub extends beyond the face of thestrip and is adapted to operate in the depression around the hub-base ofthe post in the sash-plate, and the lugs 28, having the inclined sides24, are provided on thev end edge of the hub, which lugs are adapted toenter into the radial recesses in the sashplate depression when the sashand the strip are alined. The longitudinal slit 25 is provided in oneside of the hub, and the adjacent ears 26 and 27 are formed on the edgesof the slit, which ears are adapted to be drawn together by means ofthegrip-screw 13, by means of which the size of the bearing can becontracted. The springsochet 28 is provided in the rear part of the huband is formed somewhat larger than the pivot-bearing, thus form-A ingthe annular shoulder 29.

The thimble-pivot 9 is adapted to be entered and to rotate in thepivot-bearingl and is provided with the external annular rim-fiange 30on its rear end, which flange is adapted to bear against the annularshoulder in the strip-plate hub. The thimble-pivot is also provided withthe axial aperture 8l, similar in size and angular section to thesash-plate post, in which aperture the post is adapted to be entered andto operate endwise. lV hen the parts are assembled, the spiral spring isplaced in the socket around the post and against the thimble-pivotflange, after which the head ll is attached on the end of the post andagainst the spiral spring' by the screw 12 or other suitable means, thespring being so compressed that its energy acts to draw the sash andtheir strip together at all times.

With the parts of the pivotal connection thus assembled and therespective plates attached to the sash and the strip, one on cach sideof the window, and with the strips entered in the window-frame groovesthe sash is adapted to be rotated on its pivot-bearings by merelypulling or pushing the lower end of the sash. In such rotation eachthimblepivot turns in its liiivot-bearing and at the same time isadapted to move cndwise on its axial post to accommodate the lateralmovement of the strip, and in this lateral movement the spiral spring iscompressed between the thimble-iiange and the post-head. l/Vhen the sashis rotated out of line with the stri ps, the strips are of courseseparated from the sash in the usual manner by the action of theinclined sides of the ridges on the one against the similar inclinedsides on the other until the crests of the ridges of the one ride onthose of the other, as shown in Fig. 3; but to relieve the wooden ridgesof this rubbing', especially in the middle part of the sash and strips,where the wear is the greatest and the energy of the springs thestrongest, l prefer to use the lugs on the end of the bearing-hubs, theinclined sides of which operate against the sides ofthe radial recessesin the sash-plate depression to separate the strips from the sash, afterwhich the ends of the lugs bear against the bottom of the sash-platedepression instead of depending upon the wooden ridges to do this work.It will be understood, however, that the bearing-hub extensions and thelugs thereon operating in the sash-plate depressions and the radialrecesses therein are not essential to the proper operation of the otherparts of the pivotal connection, but are preferably used to give greaterstiffness and strength to thel joint and to relieve the wooden ridgesof'excessive wear.

Then a sash is exactly balanced on its pivots or in cases where it isnot desired to hold the sash in any given position of rotation, thegrip-screw can be turned out, so as to relieve the thimble-'pivot fromany pressure or fric-V tion of the bearing; but When a Window is notexactly balanced or it is desiredv to have the sash remain in a givenposition the gripscrew is tightened, so as to contract the bearingaround the thimble-pivot to any degree necessary to accomplish thepurpose. The grip of the bearing on the thimble-pivot only acts toretard the rotation of the sash, but does not affect the freedom of theendwise movement of the thimble on the axial post. The grip screw ispreferably adjusted by means of an ordinary screw-driver entered throughan aperture, as 32, in the side of the strip.

That I claim as my invention, and desire to secureby Letters Patent, is

l. A window-sash and a separable strip on its side edge, there beingcorresponding grooves and ridges on the adjoining faces, and a pivotalconnection between the sash and the strip comprising an axial post onthe one having a depression with radial recesses around its base, arelatively non-rotatable endwise-movable thimble on the post, acontractible bearing on the other in which the thimble is adapted torotate, there being an extension on the bearing with lugs havinginclined sides adapted to operate in the depression and recesses, and aspring acting to draw the sash and the strip together.

2. A window-sash and a separable strip on its side edge, there beingcorresponding grooves and ridges on the adjoining' faces, and a pivotalconnection between the sash and the strip comprising an axial post onthe one, a relatively non-rotatable endwise-movable thimble on the post,a contractible bearing on the other in which the thimble is adapted torotate, and a spring acting' to draw the sash and the strip together.

3. A pivotal connection for a window-sash and a separable stripcomprising an axial post on the one, a relatively non-rotatableendwisemovable thimble on the post, a contractible bearing on the otherin which the thimble is adapted to rotate, and a spring acting to drawthe sash and the strip together.

4. In a pivotal connection for a windowsash and a separable strip, anaxial post on IOO IIO

the one, a relatively non-rotatable endwisein the one and'projectinglugs having inclined sides on the other adapted to enter the recesseswhen the two are closed together.

In testimony whereof I have signed my name to this specification in thepresence of two subA scrlbing witnesses.

HARVEY B. HITESHEW Witnesses:

J. W. FINK, JOHN FINE,v

